The headphone output makes a perfectly good line out if you turn the volume up.

Cheers,David.

yes?to connect to a densen amplifier , i'm worried to damage it

I assume you mean a normal integrated amplifier, or a pre/power combination? If so, yes, it will be fine.

Don't use it with just a power amplifier (i.e. don't use it without a pre-amplifier). At very low volumes the clip is too hissy to be connected directly to a power amplifier, and isn't designed for that anyway.